FIELD: oil and gas industry.
SUBSTANCE: method for development of heterogeneous oil stratum includes sequential pumping of two components into strata interacting between themselves and oil extraction, sequential pumping of two components into strata is done, at least, into one well in the ratio 1:1, note that the first component pumped is water solution of aluminium sulphate - Al2(SO4)3, and the second component pumped is heavy resin of pyrolysis, these components in the course of interaction in formation form plugging viscous emulsion, as the said water solution there used is 10-40% solution. Invention is developed in dependent claims.
EFFECT: increase of oil production efficiency from transition zones of oil strata from formations mixed with water and formation water due to reduction of water permeability and increase of oil permeability.
4 cl, 3 tbl, 5 ex
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